Male sexualization is much more complicated.
Sexualization is the emphasis on the sexual nature or behavior of something, the problem with this is what people consider "sexual" is highly subjective and depends on a variety of people to people.
For women the predominant method of sexualization is through sexual objectification which is the act of reducing a person to a mere instrument of sexual desire while entirely disregarding their emotions, agency, or dignity. this manifests through hyper-idealized and unrealistic body standards, face full of make up that somehow is treated as "natural beauty", impractical tacky clothing designed solely to emphasize sex appeal and anatomically impossible poses designed entirely to showcase multiple physical assets simultaneously.
In contrast, the sexualization of men does not have one dominant method and instead fragments into several distinct niches. On one end of the spectrum, it mirrors female objectification through hyper-muscular physiques, suggestive posing, and tacky clothing (based on bara arts). On the other end, it prioritizes emotional connection and aesthetic over physical sexuality. This is often seen in media targeted at women, such as otome games, where male characters are impeccably dressed, emotionally attentive, and possess a softer, "pretty boy" aesthetic. Then there's probably somewhere in between, etc.
The point is that these variance in how men are sexualized creates drastically different and often frustrating reactions from people. Because the ideal sexualization of men is so subjective, you will often see a broad consensus of people demanding "more sexualized male characters." However, the moment they specify *how* they want those men sexualized, they frequently face pushback and infighting from the very same people who initially agreed with them, simply because their preferred niches clash. Meanwhile, female sexualization suffers from the exact opposite issue. Because female objectification is so deeply entrenched as the default standard, any deviation from it, even simply choosing to portray a female character realistically or any other way rather than as an object results in immediate, unified backlash from a certain toxic demographic, calling that the characters are "ugly."